Wall construction.



PATENTED DEC. 18, 1906.

H. E. RAGKLE.

WALL CONSTRUCTION.

APPLIOATION FILED FEB. a. 1906.

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PATENT FFICE.

HERMAN E. RAGKLE, OF CLEVELAND, OHIO.

WALL CONSTRUCTION.

Specification of Letters Patent.

Patented Dec. 18, 1906.

Application filed February 3, 1906. Serial No. 299,312.

To all whmn it ntay concern:

Be it known that I, HERMAN E. RACKLE, a citizen of theUnited States, residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented new and useful Improvements in Wall Construction, of which the following is a specification. I

This invention is a hollow wall constructed of tiles or slabs which are interlocked and set together to form a strong and solid struc ture.

The object of the invention is to form a wall of great strength and good appearance by the use of tile or molded block.

In the accompanying drawings, Figure 1 is a perspective of a wall constructed according to the invention. Fig. 2 is a top view of one course.

The wall is built up of courses of slabs or tiles, which are spaced apart to form a hollow wall and which are tied and keyed together in such a manner that they are firmly held in position.

In the drawings, 6 indicates one of the tiles or slabs, 7 the tie-block, and 8 the key. The slabs 6 are placed opposite each other on the inside and outside of the wall and have rabbets 9 at the ends, in which fit shoulders 10, projecting from the ends of the tie-block. This block is hollow and extends through the wall from back to front. The key 8 consists of a block which is of proper width to fit in the space between the slabs 6, where it is held by mortar or cement, which is also applied to the joints between the ends of the slabs and the tie-block. The engagement of the shoulders 10 and the rabbets 9 prevents the slabs from falling outwardly, and the key between the slabs prevents them from falling inwardly. This insures a strong wall, which is not wholly dependent on the strength of the mortar or cement to hold the parts together. At the same time the advantages of a hollow wall are retained. When one course is laid, the next course is laid to break joints therewith, as shown in Fig. 1. The parts used in making the wall are few in number and simple in form and are not difficult to mold if concrete or terra-cotta is used, nor are they diflicult to cut in case of stonework. The construction, however, is particularly adapted for tile or terra-cotta and for molded cement buildingblocks.

I claim A hollow wall comprising spaced facing and backing blocks placed opposite each other and having rabbets in their ends, tieblocks extending across the wall between the ends of successive blocks in a course and having projections on opposite sides extending into said rabbets, and key-b1ocks placed in alternation with the tie-blocks in the middle part of the space between the said facing and backing blocks.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

HERMAN E. RAGKLE.

Witnesses:

JoHN A. BOMMHARDT, SHIRLEY BOMMHARDT, 

